The exception is shown below:org.hibernate.HibernateException: connnection proxy not usable after transaction completion

connnection proxy not usable after transaction completion at org.openbravo.scheduling.ProcessData.select(ProcessData.java:111) at org.openbravo.scheduling.ProcessBundle.init(ProcessBundle.java:305) at org.openbravo.advpaymentmngt.process.ProcessBatch.doExecute(ProcessBatch.java:68) at org.openbravo.service.db.DalBaseProcess.execute(DalBaseProcess.java:75)

Can anyone suggest what would be the cause for this exception and what is the possible solution for this.